Home / 105,025.60-157,538.40-91,903.60

Finding the Fourth Proportional to 105,025.60, 157,538.40 and 91,903.60

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Solution

The fourth proportional to 105,025.60, 157,538.40 and 91,903.60 is: 137,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,025.60 : 157,538.40 = 91,903.60 : x
  2. Step 2: Convert to fraction form
    105,025.60/157,538.40 = 91,903.60/x
  3. Step 3: Cross multiply
    105,025.60x = 157,538.40 × 91,903.60
  4. Step 4: Simplify right side
    105,025.60x = 14,478,346,098.24
  5. Step 5: Solve for x
    x = 14,478,346,098.24/105,025.60
  6. Step 6: Final answer
    x = 137,855.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.