Home / 127,142.76-175,465.21-70,554.13

Finding the Fourth Proportional to 127,142.76, 175,465.21 and 70,554.13

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Solution

The fourth proportional to 127,142.76, 175,465.21 and 70,554.13 is: 97,369.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,142.76 : 175,465.21 = 70,554.13 : x
  2. Step 2: Convert to fraction form
    127,142.76/175,465.21 = 70,554.13/x
  3. Step 3: Cross multiply
    127,142.76x = 175,465.21 × 70,554.13
  4. Step 4: Simplify right side
    127,142.76x = 12,379,795,236.82
  5. Step 5: Solve for x
    x = 12,379,795,236.82/127,142.76
  6. Step 6: Final answer
    x = 97,369.25

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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.