Home / 130,127.40-195,191.10-112,545

Finding the Fourth Proportional to 130,127.40, 195,191.10 and 112,545

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Solution

The fourth proportional to 130,127.40, 195,191.10 and 112,545 is: 168,817.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,127.40 : 195,191.10 = 112,545 : x
  2. Step 2: Convert to fraction form
    130,127.40/195,191.10 = 112,545/x
  3. Step 3: Cross multiply
    130,127.40x = 195,191.10 × 112,545
  4. Step 4: Simplify right side
    130,127.40x = 21,967,782,349.50
  5. Step 5: Solve for x
    x = 21,967,782,349.50/130,127.40
  6. Step 6: Final answer
    x = 168,817.50

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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.