Home / 178,780.10-246,645.95-115,154.87

Finding the Fourth Proportional to 178,780.10, 246,645.95 and 115,154.87

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Solution

The fourth proportional to 178,780.10, 246,645.95 and 115,154.87 is: 158,868.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,780.10 : 246,645.95 = 115,154.87 : x
  2. Step 2: Convert to fraction form
    178,780.10/246,645.95 = 115,154.87/x
  3. Step 3: Cross multiply
    178,780.10x = 246,645.95 × 115,154.87
  4. Step 4: Simplify right side
    178,780.10x = 28,402,480,499.27
  5. Step 5: Solve for x
    x = 28,402,480,499.27/178,780.10
  6. Step 6: Final answer
    x = 158,868.25

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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.