Home / 105,032.16-157,178.40-65,607.84

Finding the Fourth Proportional to 105,032.16, 157,178.40 and 65,607.84

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Solution

The fourth proportional to 105,032.16, 157,178.40 and 65,607.84 is: 98,180.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,032.16 : 157,178.40 = 65,607.84 : x
  2. Step 2: Convert to fraction form
    105,032.16/157,178.40 = 65,607.84/x
  3. Step 3: Cross multiply
    105,032.16x = 157,178.40 × 65,607.84
  4. Step 4: Simplify right side
    105,032.16x = 10,312,135,318.66
  5. Step 5: Solve for x
    x = 10,312,135,318.66/105,032.16
  6. Step 6: Final answer
    x = 98,180.74

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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.