Home / 109,646.12-151,312.93-64,324.89

Finding the Fourth Proportional to 109,646.12, 151,312.93 and 64,324.89

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Solution

The fourth proportional to 109,646.12, 151,312.93 and 64,324.89 is: 88,769.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,646.12 : 151,312.93 = 64,324.89 : x
  2. Step 2: Convert to fraction form
    109,646.12/151,312.93 = 64,324.89/x
  3. Step 3: Cross multiply
    109,646.12x = 151,312.93 × 64,324.89
  4. Step 4: Simplify right side
    109,646.12x = 9,733,187,417.02
  5. Step 5: Solve for x
    x = 9,733,187,417.02/109,646.12
  6. Step 6: Final answer
    x = 88,769.10

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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.