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Finding the Fourth Proportional to 145,775.52, 218,669.04 and 40,603.68

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Solution

The fourth proportional to 145,775.52, 218,669.04 and 40,603.68 is: 60,907.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,775.52 : 218,669.04 = 40,603.68 : x
  2. Step 2: Convert to fraction form
    145,775.52/218,669.04 = 40,603.68/x
  3. Step 3: Cross multiply
    145,775.52x = 218,669.04 × 40,603.68
  4. Step 4: Simplify right side
    145,775.52x = 8,878,767,726.07
  5. Step 5: Solve for x
    x = 8,878,767,726.07/145,775.52
  6. Step 6: Final answer
    x = 60,907.12

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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.