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Finding the Fourth Proportional to 105,594.59, 145,720.54 and 63,153.13

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Solution

The fourth proportional to 105,594.59, 145,720.54 and 63,153.13 is: 87,151.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,594.59 : 145,720.54 = 63,153.13 : x
  2. Step 2: Convert to fraction form
    105,594.59/145,720.54 = 63,153.13/x
  3. Step 3: Cross multiply
    105,594.59x = 145,720.54 × 63,153.13
  4. Step 4: Simplify right side
    105,594.59x = 9,202,708,206.29
  5. Step 5: Solve for x
    x = 9,202,708,206.29/105,594.59
  6. Step 6: Final answer
    x = 87,151.32

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1.5x scale

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.