Home / 131,030.70-196,254.45-128,114.70

Finding the Fourth Proportional to 131,030.70, 196,254.45 and 128,114.70

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Solution

The fourth proportional to 131,030.70, 196,254.45 and 128,114.70 is: 191,886.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,030.70 : 196,254.45 = 128,114.70 : x
  2. Step 2: Convert to fraction form
    131,030.70/196,254.45 = 128,114.70/x
  3. Step 3: Cross multiply
    131,030.70x = 196,254.45 × 128,114.70
  4. Step 4: Simplify right side
    131,030.70x = 25,143,079,985.42
  5. Step 5: Solve for x
    x = 25,143,079,985.42/131,030.70
  6. Step 6: Final answer
    x = 191,886.94

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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.