Home / 153,901.60-212,298.84-90,227.14

Finding the Fourth Proportional to 153,901.60, 212,298.84 and 90,227.14

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Solution

The fourth proportional to 153,901.60, 212,298.84 and 90,227.14 is: 124,463.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,901.60 : 212,298.84 = 90,227.14 : x
  2. Step 2: Convert to fraction form
    153,901.60/212,298.84 = 90,227.14/x
  3. Step 3: Cross multiply
    153,901.60x = 212,298.84 × 90,227.14
  4. Step 4: Simplify right side
    153,901.60x = 19,155,117,158.52
  5. Step 5: Solve for x
    x = 19,155,117,158.52/153,901.60
  6. Step 6: Final answer
    x = 124,463.40

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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.