Home / 112,681.29-168,776.28-56,423.28

Finding the Fourth Proportional to 112,681.29, 168,776.28 and 56,423.28

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Solution

The fourth proportional to 112,681.29, 168,776.28 and 56,423.28 is: 84,511.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,681.29 : 168,776.28 = 56,423.28 : x
  2. Step 2: Convert to fraction form
    112,681.29/168,776.28 = 56,423.28/x
  3. Step 3: Cross multiply
    112,681.29x = 168,776.28 × 56,423.28
  4. Step 4: Simplify right side
    112,681.29x = 9,522,911,303.80
  5. Step 5: Solve for x
    x = 9,522,911,303.80/112,681.29
  6. Step 6: Final answer
    x = 84,511.91

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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.