Home / 109,532.21-151,017.48-91,409.00

Finding the Fourth Proportional to 109,532.21, 151,017.48 and 91,409.00

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Solution

The fourth proportional to 109,532.21, 151,017.48 and 91,409.00 is: 126,030.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,532.21 : 151,017.48 = 91,409.00 : x
  2. Step 2: Convert to fraction form
    109,532.21/151,017.48 = 91,409.00/x
  3. Step 3: Cross multiply
    109,532.21x = 151,017.48 × 91,409.00
  4. Step 4: Simplify right side
    109,532.21x = 13,804,356,074.23
  5. Step 5: Solve for x
    x = 13,804,356,074.23/109,532.21
  6. Step 6: Final answer
    x = 126,030.11

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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.