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Finding the Fourth Proportional to 153,502.04, 211,829.60 and 85,518.92

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Solution

The fourth proportional to 153,502.04, 211,829.60 and 85,518.92 is: 118,014.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,502.04 : 211,829.60 = 85,518.92 : x
  2. Step 2: Convert to fraction form
    153,502.04/211,829.60 = 85,518.92/x
  3. Step 3: Cross multiply
    153,502.04x = 211,829.60 × 85,518.92
  4. Step 4: Simplify right side
    153,502.04x = 18,115,438,616.03
  5. Step 5: Solve for x
    x = 18,115,438,616.03/153,502.04
  6. Step 6: Final answer
    x = 118,014.32

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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.