Home / 112,776.08-155,623.70-61,788.74

Finding the Fourth Proportional to 112,776.08, 155,623.70 and 61,788.74

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Solution

The fourth proportional to 112,776.08, 155,623.70 and 61,788.74 is: 85,264.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,776.08 : 155,623.70 = 61,788.74 : x
  2. Step 2: Convert to fraction form
    112,776.08/155,623.70 = 61,788.74/x
  3. Step 3: Cross multiply
    112,776.08x = 155,623.70 × 61,788.74
  4. Step 4: Simplify right side
    112,776.08x = 9,615,792,337.14
  5. Step 5: Solve for x
    x = 9,615,792,337.14/112,776.08
  6. Step 6: Final answer
    x = 85,264.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.