Home / 130,946.40-180,706.26-74,357.76

Finding the Fourth Proportional to 130,946.40, 180,706.26 and 74,357.76

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Solution

The fourth proportional to 130,946.40, 180,706.26 and 74,357.76 is: 102,613.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,946.40 : 180,706.26 = 74,357.76 : x
  2. Step 2: Convert to fraction form
    130,946.40/180,706.26 = 74,357.76/x
  3. Step 3: Cross multiply
    130,946.40x = 180,706.26 × 74,357.76
  4. Step 4: Simplify right side
    130,946.40x = 13,436,912,711.58
  5. Step 5: Solve for x
    x = 13,436,912,711.58/130,946.40
  6. Step 6: Final answer
    x = 102,613.84

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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.