Home / 161,821.95-242,641.80-61,985.40

Finding the Fourth Proportional to 161,821.95, 242,641.80 and 61,985.40

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Solution

The fourth proportional to 161,821.95, 242,641.80 and 61,985.40 is: 92,943.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,821.95 : 242,641.80 = 61,985.40 : x
  2. Step 2: Convert to fraction form
    161,821.95/242,641.80 = 61,985.40/x
  3. Step 3: Cross multiply
    161,821.95x = 242,641.80 × 61,985.40
  4. Step 4: Simplify right side
    161,821.95x = 15,040,249,029.72
  5. Step 5: Solve for x
    x = 15,040,249,029.72/161,821.95
  6. Step 6: Final answer
    x = 92,943.19

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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.