Home / 103,110.68-142,292.55-57,788.65

Finding the Fourth Proportional to 103,110.68, 142,292.55 and 57,788.65

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Solution

The fourth proportional to 103,110.68, 142,292.55 and 57,788.65 is: 79,748.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,110.68 : 142,292.55 = 57,788.65 : x
  2. Step 2: Convert to fraction form
    103,110.68/142,292.55 = 57,788.65/x
  3. Step 3: Cross multiply
    103,110.68x = 142,292.55 × 57,788.65
  4. Step 4: Simplify right side
    103,110.68x = 8,222,894,547.42
  5. Step 5: Solve for x
    x = 8,222,894,547.42/103,110.68
  6. Step 6: Final answer
    x = 79,748.23

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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.