Home / 113,421.60-156,538.98-68,124.48

Finding the Fourth Proportional to 113,421.60, 156,538.98 and 68,124.48

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Solution

The fourth proportional to 113,421.60, 156,538.98 and 68,124.48 is: 94,022.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,421.60 : 156,538.98 = 68,124.48 : x
  2. Step 2: Convert to fraction form
    113,421.60/156,538.98 = 68,124.48/x
  3. Step 3: Cross multiply
    113,421.60x = 156,538.98 × 68,124.48
  4. Step 4: Simplify right side
    113,421.60x = 10,664,136,612.23
  5. Step 5: Solve for x
    x = 10,664,136,612.23/113,421.60
  6. Step 6: Final answer
    x = 94,022.10

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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.