Home / 118,409.18-163,407.02-64,697.52

Finding the Fourth Proportional to 118,409.18, 163,407.02 and 64,697.52

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Solution

The fourth proportional to 118,409.18, 163,407.02 and 64,697.52 is: 89,283.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,409.18 : 163,407.02 = 64,697.52 : x
  2. Step 2: Convert to fraction form
    118,409.18/163,407.02 = 64,697.52/x
  3. Step 3: Cross multiply
    118,409.18x = 163,407.02 × 64,697.52
  4. Step 4: Simplify right side
    118,409.18x = 10,572,029,233.88
  5. Step 5: Solve for x
    x = 10,572,029,233.88/118,409.18
  6. Step 6: Final answer
    x = 89,283.87

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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.