Home / 158,697.01-219,001.88-90,715.46

Finding the Fourth Proportional to 158,697.01, 219,001.88 and 90,715.46

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Solution

The fourth proportional to 158,697.01, 219,001.88 and 90,715.46 is: 125,187.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,697.01 : 219,001.88 = 90,715.46 : x
  2. Step 2: Convert to fraction form
    158,697.01/219,001.88 = 90,715.46/x
  3. Step 3: Cross multiply
    158,697.01x = 219,001.88 × 90,715.46
  4. Step 4: Simplify right side
    158,697.01x = 19,866,856,138.46
  5. Step 5: Solve for x
    x = 19,866,856,138.46/158,697.01
  6. Step 6: Final answer
    x = 125,187.34

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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.