Home / 371,681.15-557,542.91-105,420.74

Finding the Fourth Proportional to 371,681.15, 557,542.91 and 105,420.74

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Solution

The fourth proportional to 371,681.15, 557,542.91 and 105,420.74 is: 158,137.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,681.15 : 557,542.91 = 105,420.74 : x
  2. Step 2: Convert to fraction form
    371,681.15/557,542.91 = 105,420.74/x
  3. Step 3: Cross multiply
    371,681.15x = 557,542.91 × 105,420.74
  4. Step 4: Simplify right side
    371,681.15x = 58,776,583,366.24
  5. Step 5: Solve for x
    x = 58,776,583,366.24/371,681.15
  6. Step 6: Final answer
    x = 158,137.11

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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.