Home / 124,343.04-171,542-86,639.16

Finding the Fourth Proportional to 124,343.04, 171,542 and 86,639.16

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Solution

The fourth proportional to 124,343.04, 171,542 and 86,639.16 is: 119,526.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,343.04 : 171,542 = 86,639.16 : x
  2. Step 2: Convert to fraction form
    124,343.04/171,542 = 86,639.16/x
  3. Step 3: Cross multiply
    124,343.04x = 171,542 × 86,639.16
  4. Step 4: Simplify right side
    124,343.04x = 14,862,254,784.72
  5. Step 5: Solve for x
    x = 14,862,254,784.72/124,343.04
  6. Step 6: Final answer
    x = 119,526.23

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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.