Home / 113,986.68-157,298.40-63,685.68

Finding the Fourth Proportional to 113,986.68, 157,298.40 and 63,685.68

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Solution

The fourth proportional to 113,986.68, 157,298.40 and 63,685.68 is: 87,884.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,986.68 : 157,298.40 = 63,685.68 : x
  2. Step 2: Convert to fraction form
    113,986.68/157,298.40 = 63,685.68/x
  3. Step 3: Cross multiply
    113,986.68x = 157,298.40 × 63,685.68
  4. Step 4: Simplify right side
    113,986.68x = 10,017,655,566.91
  5. Step 5: Solve for x
    x = 10,017,655,566.91/113,986.68
  6. Step 6: Final answer
    x = 87,884.44

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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.