Home / 137,875.05-190,340.13-92,790.05

Finding the Fourth Proportional to 137,875.05, 190,340.13 and 92,790.05

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Solution

The fourth proportional to 137,875.05, 190,340.13 and 92,790.05 is: 128,099.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,875.05 : 190,340.13 = 92,790.05 : x
  2. Step 2: Convert to fraction form
    137,875.05/190,340.13 = 92,790.05/x
  3. Step 3: Cross multiply
    137,875.05x = 190,340.13 × 92,790.05
  4. Step 4: Simplify right side
    137,875.05x = 17,661,669,228.01
  5. Step 5: Solve for x
    x = 17,661,669,228.01/137,875.05
  6. Step 6: Final answer
    x = 128,099.10

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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.