Home / 92,220.30-138,330.45-90,908.10

Finding the Fourth Proportional to 92,220.30, 138,330.45 and 90,908.10

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Solution

The fourth proportional to 92,220.30, 138,330.45 and 90,908.10 is: 136,362.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,220.30 : 138,330.45 = 90,908.10 : x
  2. Step 2: Convert to fraction form
    92,220.30/138,330.45 = 90,908.10/x
  3. Step 3: Cross multiply
    92,220.30x = 138,330.45 × 90,908.10
  4. Step 4: Simplify right side
    92,220.30x = 12,575,358,381.65
  5. Step 5: Solve for x
    x = 12,575,358,381.65/92,220.30
  6. Step 6: Final answer
    x = 136,362.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.