Home / 112,779.38-169,116.08-65,407.93

Finding the Fourth Proportional to 112,779.38, 169,116.08 and 65,407.93

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Solution

The fourth proportional to 112,779.38, 169,116.08 and 65,407.93 is: 98,081.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,779.38 : 169,116.08 = 65,407.93 : x
  2. Step 2: Convert to fraction form
    112,779.38/169,116.08 = 65,407.93/x
  3. Step 3: Cross multiply
    112,779.38x = 169,116.08 × 65,407.93
  4. Step 4: Simplify right side
    112,779.38x = 11,061,532,722.51
  5. Step 5: Solve for x
    x = 11,061,532,722.51/112,779.38
  6. Step 6: Final answer
    x = 98,081.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.