Home / 112,688.28-155,509.47-62,387.28

Finding the Fourth Proportional to 112,688.28, 155,509.47 and 62,387.28

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Solution

The fourth proportional to 112,688.28, 155,509.47 and 62,387.28 is: 86,094.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,688.28 : 155,509.47 = 62,387.28 : x
  2. Step 2: Convert to fraction form
    112,688.28/155,509.47 = 62,387.28/x
  3. Step 3: Cross multiply
    112,688.28x = 155,509.47 × 62,387.28
  4. Step 4: Simplify right side
    112,688.28x = 9,701,812,847.54
  5. Step 5: Solve for x
    x = 9,701,812,847.54/112,688.28
  6. Step 6: Final answer
    x = 86,094.25

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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.