Home / 166,117.20-249,175.80-121,502.40

Finding the Fourth Proportional to 166,117.20, 249,175.80 and 121,502.40

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Solution

The fourth proportional to 166,117.20, 249,175.80 and 121,502.40 is: 182,253.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,117.20 : 249,175.80 = 121,502.40 : x
  2. Step 2: Convert to fraction form
    166,117.20/249,175.80 = 121,502.40/x
  3. Step 3: Cross multiply
    166,117.20x = 249,175.80 × 121,502.40
  4. Step 4: Simplify right side
    166,117.20x = 30,275,457,721.92
  5. Step 5: Solve for x
    x = 30,275,457,721.92/166,117.20
  6. Step 6: Final answer
    x = 182,253.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.