Home / 153,966.24-212,329.20-102,191.76

Finding the Fourth Proportional to 153,966.24, 212,329.20 and 102,191.76

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Solution

The fourth proportional to 153,966.24, 212,329.20 and 102,191.76 is: 140,928.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,966.24 : 212,329.20 = 102,191.76 : x
  2. Step 2: Convert to fraction form
    153,966.24/212,329.20 = 102,191.76/x
  3. Step 3: Cross multiply
    153,966.24x = 212,329.20 × 102,191.76
  4. Step 4: Simplify right side
    153,966.24x = 21,698,294,647.39
  5. Step 5: Solve for x
    x = 21,698,294,647.39/153,966.24
  6. Step 6: Final answer
    x = 140,928.91

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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.