Home / 142,307.70-213,403.95-48,765.30

Finding the Fourth Proportional to 142,307.70, 213,403.95 and 48,765.30

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Solution

The fourth proportional to 142,307.70, 213,403.95 and 48,765.30 is: 73,128.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,307.70 : 213,403.95 = 48,765.30 : x
  2. Step 2: Convert to fraction form
    142,307.70/213,403.95 = 48,765.30/x
  3. Step 3: Cross multiply
    142,307.70x = 213,403.95 × 48,765.30
  4. Step 4: Simplify right side
    142,307.70x = 10,406,707,642.94
  5. Step 5: Solve for x
    x = 10,406,707,642.94/142,307.70
  6. Step 6: Final answer
    x = 73,128.21

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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.