Home / 136,810.13-205,206.98-42,041.21

Finding the Fourth Proportional to 136,810.13, 205,206.98 and 42,041.21

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Solution

The fourth proportional to 136,810.13, 205,206.98 and 42,041.21 is: 63,059.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,810.13 : 205,206.98 = 42,041.21 : x
  2. Step 2: Convert to fraction form
    136,810.13/205,206.98 = 42,041.21/x
  3. Step 3: Cross multiply
    136,810.13x = 205,206.98 × 42,041.21
  4. Step 4: Simplify right side
    136,810.13x = 8,627,148,503.40
  5. Step 5: Solve for x
    x = 8,627,148,503.40/136,810.13
  6. Step 6: Final answer
    x = 63,059.28

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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.