Home / 151,320.76-208,759.98-90,054.70

Finding the Fourth Proportional to 151,320.76, 208,759.98 and 90,054.70

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Solution

The fourth proportional to 151,320.76, 208,759.98 and 90,054.70 is: 124,238.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,320.76 : 208,759.98 = 90,054.70 : x
  2. Step 2: Convert to fraction form
    151,320.76/208,759.98 = 90,054.70/x
  3. Step 3: Cross multiply
    151,320.76x = 208,759.98 × 90,054.70
  4. Step 4: Simplify right side
    151,320.76x = 18,799,817,370.91
  5. Step 5: Solve for x
    x = 18,799,817,370.91/151,320.76
  6. Step 6: Final answer
    x = 124,238.19

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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.