Home / 130,752.34-196,128.51-91,386.34

Finding the Fourth Proportional to 130,752.34, 196,128.51 and 91,386.34

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Solution

The fourth proportional to 130,752.34, 196,128.51 and 91,386.34 is: 137,079.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,752.34 : 196,128.51 = 91,386.34 : x
  2. Step 2: Convert to fraction form
    130,752.34/196,128.51 = 91,386.34/x
  3. Step 3: Cross multiply
    130,752.34x = 196,128.51 × 91,386.34
  4. Step 4: Simplify right side
    130,752.34x = 17,923,465,260.98
  5. Step 5: Solve for x
    x = 17,923,465,260.98/130,752.34
  6. Step 6: Final answer
    x = 137,079.50

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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.