Home / 189,887.04-284,831.10-71,526.60

Finding the Fourth Proportional to 189,887.04, 284,831.10 and 71,526.60

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Solution

The fourth proportional to 189,887.04, 284,831.10 and 71,526.60 is: 107,290.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,887.04 : 284,831.10 = 71,526.60 : x
  2. Step 2: Convert to fraction form
    189,887.04/284,831.10 = 71,526.60/x
  3. Step 3: Cross multiply
    189,887.04x = 284,831.10 × 71,526.60
  4. Step 4: Simplify right side
    189,887.04x = 20,373,000,157.26
  5. Step 5: Solve for x
    x = 20,373,000,157.26/189,887.04
  6. Step 6: Final answer
    x = 107,290.10

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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.