Home / 127,243.04-175,498.08-86,438.64

Finding the Fourth Proportional to 127,243.04, 175,498.08 and 86,438.64

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Solution

The fourth proportional to 127,243.04, 175,498.08 and 86,438.64 is: 119,219.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,243.04 : 175,498.08 = 86,438.64 : x
  2. Step 2: Convert to fraction form
    127,243.04/175,498.08 = 86,438.64/x
  3. Step 3: Cross multiply
    127,243.04x = 175,498.08 × 86,438.64
  4. Step 4: Simplify right side
    127,243.04x = 15,169,815,357.81
  5. Step 5: Solve for x
    x = 15,169,815,357.81/127,243.04
  6. Step 6: Final answer
    x = 119,219.22

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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.