Home / 118,407.40-163,400.30-64,691.26

Finding the Fourth Proportional to 118,407.40, 163,400.30 and 64,691.26

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Solution

The fourth proportional to 118,407.40, 163,400.30 and 64,691.26 is: 89,272.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,407.40 : 163,400.30 = 64,691.26 : x
  2. Step 2: Convert to fraction form
    118,407.40/163,400.30 = 64,691.26/x
  3. Step 3: Cross multiply
    118,407.40x = 163,400.30 × 64,691.26
  4. Step 4: Simplify right side
    118,407.40x = 10,570,570,802.01
  5. Step 5: Solve for x
    x = 10,570,570,802.01/118,407.40
  6. Step 6: Final answer
    x = 89,272.89

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1.5x scale

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.