Home / 97,282.88-145,479.63-70,718.12

Finding the Fourth Proportional to 97,282.88, 145,479.63 and 70,718.12

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Solution

The fourth proportional to 97,282.88, 145,479.63 and 70,718.12 is: 105,753.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,282.88 : 145,479.63 = 70,718.12 : x
  2. Step 2: Convert to fraction form
    97,282.88/145,479.63 = 70,718.12/x
  3. Step 3: Cross multiply
    97,282.88x = 145,479.63 × 70,718.12
  4. Step 4: Simplify right side
    97,282.88x = 10,288,045,931.90
  5. Step 5: Solve for x
    x = 10,288,045,931.90/97,282.88
  6. Step 6: Final answer
    x = 105,753.92

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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.