Home / 115,895.48-159,960.72-70,588.40

Finding the Fourth Proportional to 115,895.48, 159,960.72 and 70,588.40

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Solution

The fourth proportional to 115,895.48, 159,960.72 and 70,588.40 is: 97,427.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,895.48 : 159,960.72 = 70,588.40 : x
  2. Step 2: Convert to fraction form
    115,895.48/159,960.72 = 70,588.40/x
  3. Step 3: Cross multiply
    115,895.48x = 159,960.72 × 70,588.40
  4. Step 4: Simplify right side
    115,895.48x = 11,291,371,287.65
  5. Step 5: Solve for x
    x = 11,291,371,287.65/115,895.48
  6. Step 6: Final answer
    x = 97,427.19

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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.