Home / 195,428.60-293,142.90-127,777.40

Finding the Fourth Proportional to 195,428.60, 293,142.90 and 127,777.40

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Solution

The fourth proportional to 195,428.60, 293,142.90 and 127,777.40 is: 191,666.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,428.60 : 293,142.90 = 127,777.40 : x
  2. Step 2: Convert to fraction form
    195,428.60/293,142.90 = 127,777.40/x
  3. Step 3: Cross multiply
    195,428.60x = 293,142.90 × 127,777.40
  4. Step 4: Simplify right side
    195,428.60x = 37,457,037,590.46
  5. Step 5: Solve for x
    x = 37,457,037,590.46/195,428.60
  6. Step 6: Final answer
    x = 191,666.10

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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.