Home / 107,656.41-148,639.02-67,386.45

Finding the Fourth Proportional to 107,656.41, 148,639.02 and 67,386.45

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Solution

The fourth proportional to 107,656.41, 148,639.02 and 67,386.45 is: 93,039.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,656.41 : 148,639.02 = 67,386.45 : x
  2. Step 2: Convert to fraction form
    107,656.41/148,639.02 = 67,386.45/x
  3. Step 3: Cross multiply
    107,656.41x = 148,639.02 × 67,386.45
  4. Step 4: Simplify right side
    107,656.41x = 10,016,255,889.28
  5. Step 5: Solve for x
    x = 10,016,255,889.28/107,656.41
  6. Step 6: Final answer
    x = 93,039.10

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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.