Home / 115,501.95-159,390.99-64,515.39

Finding the Fourth Proportional to 115,501.95, 159,390.99 and 64,515.39

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Solution

The fourth proportional to 115,501.95, 159,390.99 and 64,515.39 is: 89,030.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,501.95 : 159,390.99 = 64,515.39 : x
  2. Step 2: Convert to fraction form
    115,501.95/159,390.99 = 64,515.39/x
  3. Step 3: Cross multiply
    115,501.95x = 159,390.99 × 64,515.39
  4. Step 4: Simplify right side
    115,501.95x = 10,283,171,882.34
  5. Step 5: Solve for x
    x = 10,283,171,882.34/115,501.95
  6. Step 6: Final answer
    x = 89,030.29

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1.5x scale

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.