Home / 118,431.86-163,429.02-64,717.29

Finding the Fourth Proportional to 118,431.86, 163,429.02 and 64,717.29

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Solution

The fourth proportional to 118,431.86, 163,429.02 and 64,717.29 is: 89,306.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,431.86 : 163,429.02 = 64,717.29 : x
  2. Step 2: Convert to fraction form
    118,431.86/163,429.02 = 64,717.29/x
  3. Step 3: Cross multiply
    118,431.86x = 163,429.02 × 64,717.29
  4. Step 4: Simplify right side
    118,431.86x = 10,576,683,281.76
  5. Step 5: Solve for x
    x = 10,576,683,281.76/118,431.86
  6. Step 6: Final answer
    x = 89,306.07

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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.