Home / 130,339.81-179,863.96-72,973.77

Finding the Fourth Proportional to 130,339.81, 179,863.96 and 72,973.77

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Solution

The fourth proportional to 130,339.81, 179,863.96 and 72,973.77 is: 100,701.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,339.81 : 179,863.96 = 72,973.77 : x
  2. Step 2: Convert to fraction form
    130,339.81/179,863.96 = 72,973.77/x
  3. Step 3: Cross multiply
    130,339.81x = 179,863.96 × 72,973.77
  4. Step 4: Simplify right side
    130,339.81x = 13,125,350,933.89
  5. Step 5: Solve for x
    x = 13,125,350,933.89/130,339.81
  6. Step 6: Final answer
    x = 100,701.01

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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.