Home / 127,574.28-191,088.04-103,768.84

Finding the Fourth Proportional to 127,574.28, 191,088.04 and 103,768.84

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Solution

The fourth proportional to 127,574.28, 191,088.04 and 103,768.84 is: 155,430.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,574.28 : 191,088.04 = 103,768.84 : x
  2. Step 2: Convert to fraction form
    127,574.28/191,088.04 = 103,768.84/x
  3. Step 3: Cross multiply
    127,574.28x = 191,088.04 × 103,768.84
  4. Step 4: Simplify right side
    127,574.28x = 19,828,984,248.67
  5. Step 5: Solve for x
    x = 19,828,984,248.67/127,574.28
  6. Step 6: Final answer
    x = 155,430.89

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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.