Home / 89,555.90-133,543.76-88,756.43

Finding the Fourth Proportional to 89,555.90, 133,543.76 and 88,756.43

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Solution

The fourth proportional to 89,555.90, 133,543.76 and 88,756.43 is: 132,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,555.90 : 133,543.76 = 88,756.43 : x
  2. Step 2: Convert to fraction form
    89,555.90/133,543.76 = 88,756.43/x
  3. Step 3: Cross multiply
    89,555.90x = 133,543.76 × 88,756.43
  4. Step 4: Simplify right side
    89,555.90x = 11,852,866,274.88
  5. Step 5: Solve for x
    x = 11,852,866,274.88/89,555.90
  6. Step 6: Final answer
    x = 132,351.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.