Home / 112,842.90-155,718.54-67,494.11

Finding the Fourth Proportional to 112,842.90, 155,718.54 and 67,494.11

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Solution

The fourth proportional to 112,842.90, 155,718.54 and 67,494.11 is: 93,139.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,842.90 : 155,718.54 = 67,494.11 : x
  2. Step 2: Convert to fraction form
    112,842.90/155,718.54 = 67,494.11/x
  3. Step 3: Cross multiply
    112,842.90x = 155,718.54 × 67,494.11
  4. Step 4: Simplify right side
    112,842.90x = 10,510,083,489.21
  5. Step 5: Solve for x
    x = 10,510,083,489.21/112,842.90
  6. Step 6: Final answer
    x = 93,139.08

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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.