Home / 91,328.64-137,020.65-64,726.07

Finding the Fourth Proportional to 91,328.64, 137,020.65 and 64,726.07

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Solution

The fourth proportional to 91,328.64, 137,020.65 and 64,726.07 is: 97,108.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,328.64 : 137,020.65 = 64,726.07 : x
  2. Step 2: Convert to fraction form
    91,328.64/137,020.65 = 64,726.07/x
  3. Step 3: Cross multiply
    91,328.64x = 137,020.65 × 64,726.07
  4. Step 4: Simplify right side
    91,328.64x = 8,868,808,183.35
  5. Step 5: Solve for x
    x = 8,868,808,183.35/91,328.64
  6. Step 6: Final answer
    x = 97,108.73

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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.