Home / 121,421.34-182,088.27-51,306.12

Finding the Fourth Proportional to 121,421.34, 182,088.27 and 51,306.12

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Solution

The fourth proportional to 121,421.34, 182,088.27 and 51,306.12 is: 76,940.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,421.34 : 182,088.27 = 51,306.12 : x
  2. Step 2: Convert to fraction form
    121,421.34/182,088.27 = 51,306.12/x
  3. Step 3: Cross multiply
    121,421.34x = 182,088.27 × 51,306.12
  4. Step 4: Simplify right side
    121,421.34x = 9,342,242,631.21
  5. Step 5: Solve for x
    x = 9,342,242,631.21/121,421.34
  6. Step 6: Final answer
    x = 76,940.70

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1.5x scale

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.