Home / 107,312.20-160,968.30-28,434.40

Finding the Fourth Proportional to 107,312.20, 160,968.30 and 28,434.40

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Solution

The fourth proportional to 107,312.20, 160,968.30 and 28,434.40 is: 42,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,312.20 : 160,968.30 = 28,434.40 : x
  2. Step 2: Convert to fraction form
    107,312.20/160,968.30 = 28,434.40/x
  3. Step 3: Cross multiply
    107,312.20x = 160,968.30 × 28,434.40
  4. Step 4: Simplify right side
    107,312.20x = 4,577,037,029.52
  5. Step 5: Solve for x
    x = 4,577,037,029.52/107,312.20
  6. Step 6: Final answer
    x = 42,651.60

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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.