Home / 115,617.66-159,570.63-70,309.86

Finding the Fourth Proportional to 115,617.66, 159,570.63 and 70,309.86

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Solution

The fourth proportional to 115,617.66, 159,570.63 and 70,309.86 is: 97,038.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,617.66 : 159,570.63 = 70,309.86 : x
  2. Step 2: Convert to fraction form
    115,617.66/159,570.63 = 70,309.86/x
  3. Step 3: Cross multiply
    115,617.66x = 159,570.63 × 70,309.86
  4. Step 4: Simplify right side
    115,617.66x = 11,219,388,655.41
  5. Step 5: Solve for x
    x = 11,219,388,655.41/115,617.66
  6. Step 6: Final answer
    x = 97,038.71

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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.