Home / 89,307.90-133,767.45-54,186.30

Finding the Fourth Proportional to 89,307.90, 133,767.45 and 54,186.30

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Solution

The fourth proportional to 89,307.90, 133,767.45 and 54,186.30 is: 81,161.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,307.90 : 133,767.45 = 54,186.30 : x
  2. Step 2: Convert to fraction form
    89,307.90/133,767.45 = 54,186.30/x
  3. Step 3: Cross multiply
    89,307.90x = 133,767.45 × 54,186.30
  4. Step 4: Simplify right side
    89,307.90x = 7,248,363,175.94
  5. Step 5: Solve for x
    x = 7,248,363,175.94/89,307.90
  6. Step 6: Final answer
    x = 81,161.50

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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.