Home / 88,729.90-133,094.85-81,472.30

Finding the Fourth Proportional to 88,729.90, 133,094.85 and 81,472.30

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Solution

The fourth proportional to 88,729.90, 133,094.85 and 81,472.30 is: 122,208.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,729.90 : 133,094.85 = 81,472.30 : x
  2. Step 2: Convert to fraction form
    88,729.90/133,094.85 = 81,472.30/x
  3. Step 3: Cross multiply
    88,729.90x = 133,094.85 × 81,472.30
  4. Step 4: Simplify right side
    88,729.90x = 10,843,543,547.66
  5. Step 5: Solve for x
    x = 10,843,543,547.66/88,729.90
  6. Step 6: Final answer
    x = 122,208.45

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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.