Home / 109,613.09-151,264.47-61,214.51

Finding the Fourth Proportional to 109,613.09, 151,264.47 and 61,214.51

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Solution

The fourth proportional to 109,613.09, 151,264.47 and 61,214.51 is: 84,475.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,613.09 : 151,264.47 = 61,214.51 : x
  2. Step 2: Convert to fraction form
    109,613.09/151,264.47 = 61,214.51/x
  3. Step 3: Cross multiply
    109,613.09x = 151,264.47 × 61,214.51
  4. Step 4: Simplify right side
    109,613.09x = 9,259,579,655.14
  5. Step 5: Solve for x
    x = 9,259,579,655.14/109,613.09
  6. Step 6: Final answer
    x = 84,475.13

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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.