Home / 112,721.16-155,553.28-62,419.08

Finding the Fourth Proportional to 112,721.16, 155,553.28 and 62,419.08

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Solution

The fourth proportional to 112,721.16, 155,553.28 and 62,419.08 is: 86,137.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,721.16 : 155,553.28 = 62,419.08 : x
  2. Step 2: Convert to fraction form
    112,721.16/155,553.28 = 62,419.08/x
  3. Step 3: Cross multiply
    112,721.16x = 155,553.28 × 62,419.08
  4. Step 4: Simplify right side
    112,721.16x = 9,709,492,628.58
  5. Step 5: Solve for x
    x = 9,709,492,628.58/112,721.16
  6. Step 6: Final answer
    x = 86,137.27

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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.