Home / 158,148.52-218,247.69-86,534.80

Finding the Fourth Proportional to 158,148.52, 218,247.69 and 86,534.80

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Solution

The fourth proportional to 158,148.52, 218,247.69 and 86,534.80 is: 119,419.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,148.52 : 218,247.69 = 86,534.80 : x
  2. Step 2: Convert to fraction form
    158,148.52/218,247.69 = 86,534.80/x
  3. Step 3: Cross multiply
    158,148.52x = 218,247.69 × 86,534.80
  4. Step 4: Simplify right side
    158,148.52x = 18,886,020,204.61
  5. Step 5: Solve for x
    x = 18,886,020,204.61/158,148.52
  6. Step 6: Final answer
    x = 119,419.52

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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.