Home / 112,256.60-168,384.66-45,681.89

Finding the Fourth Proportional to 112,256.60, 168,384.66 and 45,681.89

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Solution

The fourth proportional to 112,256.60, 168,384.66 and 45,681.89 is: 68,522.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,256.60 : 168,384.66 = 45,681.89 : x
  2. Step 2: Convert to fraction form
    112,256.60/168,384.66 = 45,681.89/x
  3. Step 3: Cross multiply
    112,256.60x = 168,384.66 × 45,681.89
  4. Step 4: Simplify right side
    112,256.60x = 7,692,129,515.81
  5. Step 5: Solve for x
    x = 7,692,129,515.81/112,256.60
  6. Step 6: Final answer
    x = 68,522.74

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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.