Home / 112,717.80-155,527.78-62,407.40

Finding the Fourth Proportional to 112,717.80, 155,527.78 and 62,407.40

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Solution

The fourth proportional to 112,717.80, 155,527.78 and 62,407.40 is: 86,109.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,717.80 : 155,527.78 = 62,407.40 : x
  2. Step 2: Convert to fraction form
    112,717.80/155,527.78 = 62,407.40/x
  3. Step 3: Cross multiply
    112,717.80x = 155,527.78 × 62,407.40
  4. Step 4: Simplify right side
    112,717.80x = 9,706,084,377.57
  5. Step 5: Solve for x
    x = 9,706,084,377.57/112,717.80
  6. Step 6: Final answer
    x = 86,109.60

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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.