Home / 117,384.04-161,861.59-87,225.31

Finding the Fourth Proportional to 117,384.04, 161,861.59 and 87,225.31

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Solution

The fourth proportional to 117,384.04, 161,861.59 and 87,225.31 is: 120,275.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,384.04 : 161,861.59 = 87,225.31 : x
  2. Step 2: Convert to fraction form
    117,384.04/161,861.59 = 87,225.31/x
  3. Step 3: Cross multiply
    117,384.04x = 161,861.59 × 87,225.31
  4. Step 4: Simplify right side
    117,384.04x = 14,118,427,178.25
  5. Step 5: Solve for x
    x = 14,118,427,178.25/117,384.04
  6. Step 6: Final answer
    x = 120,275.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.