Home / 121,770.03-182,669.81-42,868.11

Finding the Fourth Proportional to 121,770.03, 182,669.81 and 42,868.11

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Solution

The fourth proportional to 121,770.03, 182,669.81 and 42,868.11 is: 64,307.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,770.03 : 182,669.81 = 42,868.11 : x
  2. Step 2: Convert to fraction form
    121,770.03/182,669.81 = 42,868.11/x
  3. Step 3: Cross multiply
    121,770.03x = 182,669.81 × 42,868.11
  4. Step 4: Simplify right side
    121,770.03x = 7,830,709,294.42
  5. Step 5: Solve for x
    x = 7,830,709,294.42/121,770.03
  6. Step 6: Final answer
    x = 64,307.36

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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.