Home / 99,492.28-137,277.12-83,424.58

Finding the Fourth Proportional to 99,492.28, 137,277.12 and 83,424.58

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Solution

The fourth proportional to 99,492.28, 137,277.12 and 83,424.58 is: 115,107.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,492.28 : 137,277.12 = 83,424.58 : x
  2. Step 2: Convert to fraction form
    99,492.28/137,277.12 = 83,424.58/x
  3. Step 3: Cross multiply
    99,492.28x = 137,277.12 × 83,424.58
  4. Step 4: Simplify right side
    99,492.28x = 11,452,286,079.61
  5. Step 5: Solve for x
    x = 11,452,286,079.61/99,492.28
  6. Step 6: Final answer
    x = 115,107.28

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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.