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Finding the Fourth Proportional to 103,752.60, 143,756.80 and 101,510.52

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Solution

The fourth proportional to 103,752.60, 143,756.80 and 101,510.52 is: 140,650.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,752.60 : 143,756.80 = 101,510.52 : x
  2. Step 2: Convert to fraction form
    103,752.60/143,756.80 = 101,510.52/x
  3. Step 3: Cross multiply
    103,752.60x = 143,756.80 × 101,510.52
  4. Step 4: Simplify right side
    103,752.60x = 14,592,827,521.54
  5. Step 5: Solve for x
    x = 14,592,827,521.54/103,752.60
  6. Step 6: Final answer
    x = 140,650.23

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.