Home / 105,403.50-157,856.67-91,477.17

Finding the Fourth Proportional to 105,403.50, 157,856.67 and 91,477.17

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Solution

The fourth proportional to 105,403.50, 157,856.67 and 91,477.17 is: 137,000.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,403.50 : 157,856.67 = 91,477.17 : x
  2. Step 2: Convert to fraction form
    105,403.50/157,856.67 = 91,477.17/x
  3. Step 3: Cross multiply
    105,403.50x = 157,856.67 × 91,477.17
  4. Step 4: Simplify right side
    105,403.50x = 14,440,281,437.22
  5. Step 5: Solve for x
    x = 14,440,281,437.22/105,403.50
  6. Step 6: Final answer
    x = 137,000.02

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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.