Home / 136,319.07-188,277.77-90,918.16

Finding the Fourth Proportional to 136,319.07, 188,277.77 and 90,918.16

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Solution

The fourth proportional to 136,319.07, 188,277.77 and 90,918.16 is: 125,572.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,319.07 : 188,277.77 = 90,918.16 : x
  2. Step 2: Convert to fraction form
    136,319.07/188,277.77 = 90,918.16/x
  3. Step 3: Cross multiply
    136,319.07x = 188,277.77 × 90,918.16
  4. Step 4: Simplify right side
    136,319.07x = 17,117,868,417.30
  5. Step 5: Solve for x
    x = 17,117,868,417.30/136,319.07
  6. Step 6: Final answer
    x = 125,572.07

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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.