Home / 151,678.95-209,358.59-88,037.25

Finding the Fourth Proportional to 151,678.95, 209,358.59 and 88,037.25

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Solution

The fourth proportional to 151,678.95, 209,358.59 and 88,037.25 is: 121,515.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,678.95 : 209,358.59 = 88,037.25 : x
  2. Step 2: Convert to fraction form
    151,678.95/209,358.59 = 88,037.25/x
  3. Step 3: Cross multiply
    151,678.95x = 209,358.59 × 88,037.25
  4. Step 4: Simplify right side
    151,678.95x = 18,431,354,527.48
  5. Step 5: Solve for x
    x = 18,431,354,527.48/151,678.95
  6. Step 6: Final answer
    x = 121,515.57

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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.