Home / 118,323.18-163,279.62-64,607.40

Finding the Fourth Proportional to 118,323.18, 163,279.62 and 64,607.40

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Solution

The fourth proportional to 118,323.18, 163,279.62 and 64,607.40 is: 89,154.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,323.18 : 163,279.62 = 64,607.40 : x
  2. Step 2: Convert to fraction form
    118,323.18/163,279.62 = 64,607.40/x
  3. Step 3: Cross multiply
    118,323.18x = 163,279.62 × 64,607.40
  4. Step 4: Simplify right side
    118,323.18x = 10,549,071,721.19
  5. Step 5: Solve for x
    x = 10,549,071,721.19/118,323.18
  6. Step 6: Final answer
    x = 89,154.73

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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.