Home / 157,271.13-235,737.03-77,216.00

Finding the Fourth Proportional to 157,271.13, 235,737.03 and 77,216.00

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Solution

The fourth proportional to 157,271.13, 235,737.03 and 77,216.00 is: 115,740.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,271.13 : 235,737.03 = 77,216.00 : x
  2. Step 2: Convert to fraction form
    157,271.13/235,737.03 = 77,216.00/x
  3. Step 3: Cross multiply
    157,271.13x = 235,737.03 × 77,216.00
  4. Step 4: Simplify right side
    157,271.13x = 18,202,669,329.79
  5. Step 5: Solve for x
    x = 18,202,669,329.79/157,271.13
  6. Step 6: Final answer
    x = 115,740.69

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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.