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Finding the Fourth Proportional to 139,879.16, 192,975.44 and 97,462.30

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Solution

The fourth proportional to 139,879.16, 192,975.44 and 97,462.30 is: 134,457.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,879.16 : 192,975.44 = 97,462.30 : x
  2. Step 2: Convert to fraction form
    139,879.16/192,975.44 = 97,462.30/x
  3. Step 3: Cross multiply
    139,879.16x = 192,975.44 × 97,462.30
  4. Step 4: Simplify right side
    139,879.16x = 18,807,830,225.91
  5. Step 5: Solve for x
    x = 18,807,830,225.91/139,879.16
  6. Step 6: Final answer
    x = 134,457.70

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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.