Home / 191,423.52-287,135.28-51,178.50

Finding the Fourth Proportional to 191,423.52, 287,135.28 and 51,178.50

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Solution

The fourth proportional to 191,423.52, 287,135.28 and 51,178.50 is: 76,767.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,423.52 : 287,135.28 = 51,178.50 : x
  2. Step 2: Convert to fraction form
    191,423.52/287,135.28 = 51,178.50/x
  3. Step 3: Cross multiply
    191,423.52x = 287,135.28 × 51,178.50
  4. Step 4: Simplify right side
    191,423.52x = 14,695,152,927.48
  5. Step 5: Solve for x
    x = 14,695,152,927.48/191,423.52
  6. Step 6: Final answer
    x = 76,767.75

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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.