Home / 153,666.54-212,087.84-89,177.04

Finding the Fourth Proportional to 153,666.54, 212,087.84 and 89,177.04

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Solution

The fourth proportional to 153,666.54, 212,087.84 and 89,177.04 is: 123,080.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,666.54 : 212,087.84 = 89,177.04 : x
  2. Step 2: Convert to fraction form
    153,666.54/212,087.84 = 89,177.04/x
  3. Step 3: Cross multiply
    153,666.54x = 212,087.84 × 89,177.04
  4. Step 4: Simplify right side
    153,666.54x = 18,913,365,345.31
  5. Step 5: Solve for x
    x = 18,913,365,345.31/153,666.54
  6. Step 6: Final answer
    x = 123,080.57

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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.