Home / 153,875.28-212,383.32-90,233.58

Finding the Fourth Proportional to 153,875.28, 212,383.32 and 90,233.58

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Solution

The fourth proportional to 153,875.28, 212,383.32 and 90,233.58 is: 124,543.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,875.28 : 212,383.32 = 90,233.58 : x
  2. Step 2: Convert to fraction form
    153,875.28/212,383.32 = 90,233.58/x
  3. Step 3: Cross multiply
    153,875.28x = 212,383.32 × 90,233.58
  4. Step 4: Simplify right side
    153,875.28x = 19,164,107,753.95
  5. Step 5: Solve for x
    x = 19,164,107,753.95/153,875.28
  6. Step 6: Final answer
    x = 124,543.12

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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.