Home / 130,347.09-179,837.16-72,977.96

Finding the Fourth Proportional to 130,347.09, 179,837.16 and 72,977.96

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Solution

The fourth proportional to 130,347.09, 179,837.16 and 72,977.96 is: 100,686.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,347.09 : 179,837.16 = 72,977.96 : x
  2. Step 2: Convert to fraction form
    130,347.09/179,837.16 = 72,977.96/x
  3. Step 3: Cross multiply
    130,347.09x = 179,837.16 × 72,977.96
  4. Step 4: Simplify right side
    130,347.09x = 13,124,149,655.42
  5. Step 5: Solve for x
    x = 13,124,149,655.42/130,347.09
  6. Step 6: Final answer
    x = 100,686.17

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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.