Home / 116,391.10-160,478.80-90,557.16

Finding the Fourth Proportional to 116,391.10, 160,478.80 and 90,557.16

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Solution

The fourth proportional to 116,391.10, 160,478.80 and 90,557.16 is: 124,859.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,391.10 : 160,478.80 = 90,557.16 : x
  2. Step 2: Convert to fraction form
    116,391.10/160,478.80 = 90,557.16/x
  3. Step 3: Cross multiply
    116,391.10x = 160,478.80 × 90,557.16
  4. Step 4: Simplify right side
    116,391.10x = 14,532,504,368.21
  5. Step 5: Solve for x
    x = 14,532,504,368.21/116,391.10
  6. Step 6: Final answer
    x = 124,859.24

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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.