Home / 218,575.04-301,638.67-121,785.41

Finding the Fourth Proportional to 218,575.04, 301,638.67 and 121,785.41

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Solution

The fourth proportional to 218,575.04, 301,638.67 and 121,785.41 is: 168,066.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,575.04 : 301,638.67 = 121,785.41 : x
  2. Step 2: Convert to fraction form
    218,575.04/301,638.67 = 121,785.41/x
  3. Step 3: Cross multiply
    218,575.04x = 301,638.67 × 121,785.41
  4. Step 4: Simplify right side
    218,575.04x = 36,735,189,547.44
  5. Step 5: Solve for x
    x = 36,735,189,547.44/218,575.04
  6. Step 6: Final answer
    x = 168,066.72

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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.