Home / 157,055.50-235,658.85-78,176.62

Finding the Fourth Proportional to 157,055.50, 235,658.85 and 78,176.62

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Solution

The fourth proportional to 157,055.50, 235,658.85 and 78,176.62 is: 117,302.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,055.50 : 235,658.85 = 78,176.62 : x
  2. Step 2: Convert to fraction form
    157,055.50/235,658.85 = 78,176.62/x
  3. Step 3: Cross multiply
    157,055.50x = 235,658.85 × 78,176.62
  4. Step 4: Simplify right side
    157,055.50x = 18,423,012,366.09
  5. Step 5: Solve for x
    x = 18,423,012,366.09/157,055.50
  6. Step 6: Final answer
    x = 117,302.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.