Home / 117,130.80-161,623.08-71,166.48

Finding the Fourth Proportional to 117,130.80, 161,623.08 and 71,166.48

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Solution

The fourth proportional to 117,130.80, 161,623.08 and 71,166.48 is: 98,199.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,130.80 : 161,623.08 = 71,166.48 : x
  2. Step 2: Convert to fraction form
    117,130.80/161,623.08 = 71,166.48/x
  3. Step 3: Cross multiply
    117,130.80x = 161,623.08 × 71,166.48
  4. Step 4: Simplify right side
    117,130.80x = 11,502,145,690.36
  5. Step 5: Solve for x
    x = 11,502,145,690.36/117,130.80
  6. Step 6: Final answer
    x = 98,199.16

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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.