Home / 158,709.69-219,011.85-87,088.14

Finding the Fourth Proportional to 158,709.69, 219,011.85 and 87,088.14

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Solution

The fourth proportional to 158,709.69, 219,011.85 and 87,088.14 is: 120,177.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,709.69 : 219,011.85 = 87,088.14 : x
  2. Step 2: Convert to fraction form
    158,709.69/219,011.85 = 87,088.14/x
  3. Step 3: Cross multiply
    158,709.69x = 219,011.85 × 87,088.14
  4. Step 4: Simplify right side
    158,709.69x = 19,073,334,654.46
  5. Step 5: Solve for x
    x = 19,073,334,654.46/158,709.69
  6. Step 6: Final answer
    x = 120,177.51

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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.