Home / 127,143.16-175,465.77-70,554.53

Finding the Fourth Proportional to 127,143.16, 175,465.77 and 70,554.53

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Solution

The fourth proportional to 127,143.16, 175,465.77 and 70,554.53 is: 97,369.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,143.16 : 175,465.77 = 70,554.53 : x
  2. Step 2: Convert to fraction form
    127,143.16/175,465.77 = 70,554.53/x
  3. Step 3: Cross multiply
    127,143.16x = 175,465.77 × 70,554.53
  4. Step 4: Simplify right side
    127,143.16x = 12,379,904,933.44
  5. Step 5: Solve for x
    x = 12,379,904,933.44/127,143.16
  6. Step 6: Final answer
    x = 97,369.81

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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.