Home / 282,657.15-423,985.97-105,141.15

Finding the Fourth Proportional to 282,657.15, 423,985.97 and 105,141.15

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Solution

The fourth proportional to 282,657.15, 423,985.97 and 105,141.15 is: 157,711.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,657.15 : 423,985.97 = 105,141.15 : x
  2. Step 2: Convert to fraction form
    282,657.15/423,985.97 = 105,141.15/x
  3. Step 3: Cross multiply
    282,657.15x = 423,985.97 × 105,141.15
  4. Step 4: Simplify right side
    282,657.15x = 44,578,371,943.96
  5. Step 5: Solve for x
    x = 44,578,371,943.96/282,657.15
  6. Step 6: Final answer
    x = 157,711.81

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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.