Home / 142,526.35-196,655.12-85,157.06

Finding the Fourth Proportional to 142,526.35, 196,655.12 and 85,157.06

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Solution

The fourth proportional to 142,526.35, 196,655.12 and 85,157.06 is: 117,498.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,526.35 : 196,655.12 = 85,157.06 : x
  2. Step 2: Convert to fraction form
    142,526.35/196,655.12 = 85,157.06/x
  3. Step 3: Cross multiply
    142,526.35x = 196,655.12 × 85,157.06
  4. Step 4: Simplify right side
    142,526.35x = 16,746,571,242.43
  5. Step 5: Solve for x
    x = 16,746,571,242.43/142,526.35
  6. Step 6: Final answer
    x = 117,498.07

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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.