Home / 120,070.08-165,682.40-71,663.13

Finding the Fourth Proportional to 120,070.08, 165,682.40 and 71,663.13

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Solution

The fourth proportional to 120,070.08, 165,682.40 and 71,663.13 is: 98,886.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,070.08 : 165,682.40 = 71,663.13 : x
  2. Step 2: Convert to fraction form
    120,070.08/165,682.40 = 71,663.13/x
  3. Step 3: Cross multiply
    120,070.08x = 165,682.40 × 71,663.13
  4. Step 4: Simplify right side
    120,070.08x = 11,873,319,011.60
  5. Step 5: Solve for x
    x = 11,873,319,011.60/120,070.08
  6. Step 6: Final answer
    x = 98,886.58

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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.