Home / 105,014,788.65-157,522,182.98-90,859,012.65

Finding the Fourth Proportional to 105,014,788.65, 157,522,182.98 and 90,859,012.65

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Solution

The fourth proportional to 105,014,788.65, 157,522,182.98 and 90,859,012.65 is: 136,288,518.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,014,788.65 : 157,522,182.98 = 90,859,012.65 : x
  2. Step 2: Convert to fraction form
    105,014,788.65/157,522,182.98 = 90,859,012.65/x
  3. Step 3: Cross multiply
    105,014,788.65x = 157,522,182.98 × 90,859,012.65
  4. Step 4: Simplify right side
    105,014,788.65x = 14,312,310,015,581,140
  5. Step 5: Solve for x
    x = 14,312,310,015,581,140/105,014,788.65
  6. Step 6: Final answer
    x = 136,288,518.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.