Home / 127,885.12-176,592.90-80,220.40

Finding the Fourth Proportional to 127,885.12, 176,592.90 and 80,220.40

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Solution

The fourth proportional to 127,885.12, 176,592.90 and 80,220.40 is: 110,774.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,885.12 : 176,592.90 = 80,220.40 : x
  2. Step 2: Convert to fraction form
    127,885.12/176,592.90 = 80,220.40/x
  3. Step 3: Cross multiply
    127,885.12x = 176,592.90 × 80,220.40
  4. Step 4: Simplify right side
    127,885.12x = 14,166,353,075.16
  5. Step 5: Solve for x
    x = 14,166,353,075.16/127,885.12
  6. Step 6: Final answer
    x = 110,774.05

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1.5x scale

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.