Home / 136,417.42-188,285.07-91,679.50

Finding the Fourth Proportional to 136,417.42, 188,285.07 and 91,679.50

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Solution

The fourth proportional to 136,417.42, 188,285.07 and 91,679.50 is: 126,537.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,417.42 : 188,285.07 = 91,679.50 : x
  2. Step 2: Convert to fraction form
    136,417.42/188,285.07 = 91,679.50/x
  3. Step 3: Cross multiply
    136,417.42x = 188,285.07 × 91,679.50
  4. Step 4: Simplify right side
    136,417.42x = 17,261,881,075.07
  5. Step 5: Solve for x
    x = 17,261,881,075.07/136,417.42
  6. Step 6: Final answer
    x = 126,537.22

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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.