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Finding the Fourth Proportional to 118,312.32, 177,500.40 and 51,758.40

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Solution

The fourth proportional to 118,312.32, 177,500.40 and 51,758.40 is: 77,651.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,312.32 : 177,500.40 = 51,758.40 : x
  2. Step 2: Convert to fraction form
    118,312.32/177,500.40 = 51,758.40/x
  3. Step 3: Cross multiply
    118,312.32x = 177,500.40 × 51,758.40
  4. Step 4: Simplify right side
    118,312.32x = 9,187,136,703.36
  5. Step 5: Solve for x
    x = 9,187,136,703.36/118,312.32
  6. Step 6: Final answer
    x = 77,651.56

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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.