Home / 127,145.32-175,458.90-70,555.48

Finding the Fourth Proportional to 127,145.32, 175,458.90 and 70,555.48

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Solution

The fourth proportional to 127,145.32, 175,458.90 and 70,555.48 is: 97,365.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,145.32 : 175,458.90 = 70,555.48 : x
  2. Step 2: Convert to fraction form
    127,145.32/175,458.90 = 70,555.48/x
  3. Step 3: Cross multiply
    127,145.32x = 175,458.90 × 70,555.48
  4. Step 4: Simplify right side
    127,145.32x = 12,379,586,909.77
  5. Step 5: Solve for x
    x = 12,379,586,909.77/127,145.32
  6. Step 6: Final answer
    x = 97,365.65

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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.