Home / 125,389.18-187,962.81-42,237.82

Finding the Fourth Proportional to 125,389.18, 187,962.81 and 42,237.82

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Solution

The fourth proportional to 125,389.18, 187,962.81 and 42,237.82 is: 63,315.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,389.18 : 187,962.81 = 42,237.82 : x
  2. Step 2: Convert to fraction form
    125,389.18/187,962.81 = 42,237.82/x
  3. Step 3: Cross multiply
    125,389.18x = 187,962.81 × 42,237.82
  4. Step 4: Simplify right side
    125,389.18x = 7,939,139,335.47
  5. Step 5: Solve for x
    x = 7,939,139,335.47/125,389.18
  6. Step 6: Final answer
    x = 63,315.98

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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.