Home / 98,614.86-136,055.26-56,143.32

Finding the Fourth Proportional to 98,614.86, 136,055.26 and 56,143.32

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Solution

The fourth proportional to 98,614.86, 136,055.26 and 56,143.32 is: 77,458.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,614.86 : 136,055.26 = 56,143.32 : x
  2. Step 2: Convert to fraction form
    98,614.86/136,055.26 = 56,143.32/x
  3. Step 3: Cross multiply
    98,614.86x = 136,055.26 × 56,143.32
  4. Step 4: Simplify right side
    98,614.86x = 7,638,593,999.86
  5. Step 5: Solve for x
    x = 7,638,593,999.86/98,614.86
  6. Step 6: Final answer
    x = 77,458.85

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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.