Home / 121,770.28-182,670.18-42,868.36

Finding the Fourth Proportional to 121,770.28, 182,670.18 and 42,868.36

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Solution

The fourth proportional to 121,770.28, 182,670.18 and 42,868.36 is: 64,307.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,770.28 : 182,670.18 = 42,868.36 : x
  2. Step 2: Convert to fraction form
    121,770.28/182,670.18 = 42,868.36/x
  3. Step 3: Cross multiply
    121,770.28x = 182,670.18 × 42,868.36
  4. Step 4: Simplify right side
    121,770.28x = 7,830,771,037.50
  5. Step 5: Solve for x
    x = 7,830,771,037.50/121,770.28
  6. Step 6: Final answer
    x = 64,307.74

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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.