Home / 124,459.03-171,703.28-72,036.51

Finding the Fourth Proportional to 124,459.03, 171,703.28 and 72,036.51

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Solution

The fourth proportional to 124,459.03, 171,703.28 and 72,036.51 is: 99,381.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,459.03 : 171,703.28 = 72,036.51 : x
  2. Step 2: Convert to fraction form
    124,459.03/171,703.28 = 72,036.51/x
  3. Step 3: Cross multiply
    124,459.03x = 171,703.28 × 72,036.51
  4. Step 4: Simplify right side
    124,459.03x = 12,368,904,686.57
  5. Step 5: Solve for x
    x = 12,368,904,686.57/124,459.03
  6. Step 6: Final answer
    x = 99,381.34

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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.