Home / 112,629.40-155,428.86-62,330.20

Finding the Fourth Proportional to 112,629.40, 155,428.86 and 62,330.20

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Solution

The fourth proportional to 112,629.40, 155,428.86 and 62,330.20 is: 86,015.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,629.40 : 155,428.86 = 62,330.20 : x
  2. Step 2: Convert to fraction form
    112,629.40/155,428.86 = 62,330.20/x
  3. Step 3: Cross multiply
    112,629.40x = 155,428.86 × 62,330.20
  4. Step 4: Simplify right side
    112,629.40x = 9,687,911,929.57
  5. Step 5: Solve for x
    x = 9,687,911,929.57/112,629.40
  6. Step 6: Final answer
    x = 86,015.84

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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.