Home / 150,142.48-207,366.70-102,312.80

Finding the Fourth Proportional to 150,142.48, 207,366.70 and 102,312.80

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Solution

The fourth proportional to 150,142.48, 207,366.70 and 102,312.80 is: 141,307.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,142.48 : 207,366.70 = 102,312.80 : x
  2. Step 2: Convert to fraction form
    150,142.48/207,366.70 = 102,312.80/x
  3. Step 3: Cross multiply
    150,142.48x = 207,366.70 × 102,312.80
  4. Step 4: Simplify right side
    150,142.48x = 21,216,267,703.76
  5. Step 5: Solve for x
    x = 21,216,267,703.76/150,142.48
  6. Step 6: Final answer
    x = 141,307.56

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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.