Home / 124,378.20-171,646.50-70,672.31

Finding the Fourth Proportional to 124,378.20, 171,646.50 and 70,672.31

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Solution

The fourth proportional to 124,378.20, 171,646.50 and 70,672.31 is: 97,530.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,378.20 : 171,646.50 = 70,672.31 : x
  2. Step 2: Convert to fraction form
    124,378.20/171,646.50 = 70,672.31/x
  3. Step 3: Cross multiply
    124,378.20x = 171,646.50 × 70,672.31
  4. Step 4: Simplify right side
    124,378.20x = 12,130,653,800.18
  5. Step 5: Solve for x
    x = 12,130,653,800.18/124,378.20
  6. Step 6: Final answer
    x = 97,530.39

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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.