Home / 86,953.40-130,430.10-73,175.30

Finding the Fourth Proportional to 86,953.40, 130,430.10 and 73,175.30

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Solution

The fourth proportional to 86,953.40, 130,430.10 and 73,175.30 is: 109,762.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,953.40 : 130,430.10 = 73,175.30 : x
  2. Step 2: Convert to fraction form
    86,953.40/130,430.10 = 73,175.30/x
  3. Step 3: Cross multiply
    86,953.40x = 130,430.10 × 73,175.30
  4. Step 4: Simplify right side
    86,953.40x = 9,544,261,696.53
  5. Step 5: Solve for x
    x = 9,544,261,696.53/86,953.40
  6. Step 6: Final answer
    x = 109,762.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.