Home / 190,981.40-286,283.10-84,423.20

Finding the Fourth Proportional to 190,981.40, 286,283.10 and 84,423.20

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Solution

The fourth proportional to 190,981.40, 286,283.10 and 84,423.20 is: 126,551.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,981.40 : 286,283.10 = 84,423.20 : x
  2. Step 2: Convert to fraction form
    190,981.40/286,283.10 = 84,423.20/x
  3. Step 3: Cross multiply
    190,981.40x = 286,283.10 × 84,423.20
  4. Step 4: Simplify right side
    190,981.40x = 24,168,935,407.92
  5. Step 5: Solve for x
    x = 24,168,935,407.92/190,981.40
  6. Step 6: Final answer
    x = 126,551.25

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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.