Home / 153,445.39-211,761.18-85,462.36

Finding the Fourth Proportional to 153,445.39, 211,761.18 and 85,462.36

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Solution

The fourth proportional to 153,445.39, 211,761.18 and 85,462.36 is: 117,941.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,445.39 : 211,761.18 = 85,462.36 : x
  2. Step 2: Convert to fraction form
    153,445.39/211,761.18 = 85,462.36/x
  3. Step 3: Cross multiply
    153,445.39x = 211,761.18 × 85,462.36
  4. Step 4: Simplify right side
    153,445.39x = 18,097,609,669.78
  5. Step 5: Solve for x
    x = 18,097,609,669.78/153,445.39
  6. Step 6: Final answer
    x = 117,941.70

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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.