Home / 145,488.47-218,232.98-40,307.72

Finding the Fourth Proportional to 145,488.47, 218,232.98 and 40,307.72

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Solution

The fourth proportional to 145,488.47, 218,232.98 and 40,307.72 is: 60,461.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,488.47 : 218,232.98 = 40,307.72 : x
  2. Step 2: Convert to fraction form
    145,488.47/218,232.98 = 40,307.72/x
  3. Step 3: Cross multiply
    145,488.47x = 218,232.98 × 40,307.72
  4. Step 4: Simplify right side
    145,488.47x = 8,796,473,651.07
  5. Step 5: Solve for x
    x = 8,796,473,651.07/145,488.47
  6. Step 6: Final answer
    x = 60,461.65

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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.