Home / 152,139.60-228,209.40-67,899.60

Finding the Fourth Proportional to 152,139.60, 228,209.40 and 67,899.60

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Solution

The fourth proportional to 152,139.60, 228,209.40 and 67,899.60 is: 101,849.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,139.60 : 228,209.40 = 67,899.60 : x
  2. Step 2: Convert to fraction form
    152,139.60/228,209.40 = 67,899.60/x
  3. Step 3: Cross multiply
    152,139.60x = 228,209.40 × 67,899.60
  4. Step 4: Simplify right side
    152,139.60x = 15,495,326,976.24
  5. Step 5: Solve for x
    x = 15,495,326,976.24/152,139.60
  6. Step 6: Final answer
    x = 101,849.40

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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.