Home / 161,541.63-242,312.51-72,691.35

Finding the Fourth Proportional to 161,541.63, 242,312.51 and 72,691.35

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Solution

The fourth proportional to 161,541.63, 242,312.51 and 72,691.35 is: 109,037.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,541.63 : 242,312.51 = 72,691.35 : x
  2. Step 2: Convert to fraction form
    161,541.63/242,312.51 = 72,691.35/x
  3. Step 3: Cross multiply
    161,541.63x = 242,312.51 × 72,691.35
  4. Step 4: Simplify right side
    161,541.63x = 17,614,022,746.85
  5. Step 5: Solve for x
    x = 17,614,022,746.85/161,541.63
  6. Step 6: Final answer
    x = 109,037.05

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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.