Home / 141,700.14-195,547.59-78,039.90

Finding the Fourth Proportional to 141,700.14, 195,547.59 and 78,039.90

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Solution

The fourth proportional to 141,700.14, 195,547.59 and 78,039.90 is: 107,695.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,700.14 : 195,547.59 = 78,039.90 : x
  2. Step 2: Convert to fraction form
    141,700.14/195,547.59 = 78,039.90/x
  3. Step 3: Cross multiply
    141,700.14x = 195,547.59 × 78,039.90
  4. Step 4: Simplify right side
    141,700.14x = 15,260,514,368.84
  5. Step 5: Solve for x
    x = 15,260,514,368.84/141,700.14
  6. Step 6: Final answer
    x = 107,695.83

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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.