Home / 220,373.64-304,112.34-129,740.04

Finding the Fourth Proportional to 220,373.64, 304,112.34 and 129,740.04

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Solution

The fourth proportional to 220,373.64, 304,112.34 and 129,740.04 is: 179,039.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,373.64 : 304,112.34 = 129,740.04 : x
  2. Step 2: Convert to fraction form
    220,373.64/304,112.34 = 129,740.04/x
  3. Step 3: Cross multiply
    220,373.64x = 304,112.34 × 129,740.04
  4. Step 4: Simplify right side
    220,373.64x = 39,455,547,156.09
  5. Step 5: Solve for x
    x = 39,455,547,156.09/220,373.64
  6. Step 6: Final answer
    x = 179,039.32

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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.