Home / 102,686.28-153,963.51-42,756.27

Finding the Fourth Proportional to 102,686.28, 153,963.51 and 42,756.27

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Solution

The fourth proportional to 102,686.28, 153,963.51 and 42,756.27 is: 64,106.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,686.28 : 153,963.51 = 42,756.27 : x
  2. Step 2: Convert to fraction form
    102,686.28/153,963.51 = 42,756.27/x
  3. Step 3: Cross multiply
    102,686.28x = 153,963.51 × 42,756.27
  4. Step 4: Simplify right side
    102,686.28x = 6,582,905,403.71
  5. Step 5: Solve for x
    x = 6,582,905,403.71/102,686.28
  6. Step 6: Final answer
    x = 64,106.96

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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.