Home / 145,926.06-201,378.15-78,858.06

Finding the Fourth Proportional to 145,926.06, 201,378.15 and 78,858.06

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Solution

The fourth proportional to 145,926.06, 201,378.15 and 78,858.06 is: 108,824.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,926.06 : 201,378.15 = 78,858.06 : x
  2. Step 2: Convert to fraction form
    145,926.06/201,378.15 = 78,858.06/x
  3. Step 3: Cross multiply
    145,926.06x = 201,378.15 × 78,858.06
  4. Step 4: Simplify right side
    145,926.06x = 15,880,290,235.39
  5. Step 5: Solve for x
    x = 15,880,290,235.39/145,926.06
  6. Step 6: Final answer
    x = 108,824.22

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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.