Home / 142,763.40-197,109.72-127,607.49

Finding the Fourth Proportional to 142,763.40, 197,109.72 and 127,607.49

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Solution

The fourth proportional to 142,763.40, 197,109.72 and 127,607.49 is: 176,184.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,763.40 : 197,109.72 = 127,607.49 : x
  2. Step 2: Convert to fraction form
    142,763.40/197,109.72 = 127,607.49/x
  3. Step 3: Cross multiply
    142,763.40x = 197,109.72 × 127,607.49
  4. Step 4: Simplify right side
    142,763.40x = 25,152,676,623.80
  5. Step 5: Solve for x
    x = 25,152,676,623.80/142,763.40
  6. Step 6: Final answer
    x = 176,184.35

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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.