Home / 103,127.04-142,341.12-63,360

Finding the Fourth Proportional to 103,127.04, 142,341.12 and 63,360

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Solution

The fourth proportional to 103,127.04, 142,341.12 and 63,360 is: 87,452.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,127.04 : 142,341.12 = 63,360 : x
  2. Step 2: Convert to fraction form
    103,127.04/142,341.12 = 63,360/x
  3. Step 3: Cross multiply
    103,127.04x = 142,341.12 × 63,360
  4. Step 4: Simplify right side
    103,127.04x = 9,018,733,363.20
  5. Step 5: Solve for x
    x = 9,018,733,363.20/103,127.04
  6. Step 6: Final answer
    x = 87,452.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.