Home / 109,321.02-150,836.64-61,574.34

Finding the Fourth Proportional to 109,321.02, 150,836.64 and 61,574.34

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Solution

The fourth proportional to 109,321.02, 150,836.64 and 61,574.34 is: 84,957.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,321.02 : 150,836.64 = 61,574.34 : x
  2. Step 2: Convert to fraction form
    109,321.02/150,836.64 = 61,574.34/x
  3. Step 3: Cross multiply
    109,321.02x = 150,836.64 × 61,574.34
  4. Step 4: Simplify right side
    109,321.02x = 9,287,666,555.82
  5. Step 5: Solve for x
    x = 9,287,666,555.82/109,321.02
  6. Step 6: Final answer
    x = 84,957.74

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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.