Home / 139,495.60-192,501.66-75,835

Finding the Fourth Proportional to 139,495.60, 192,501.66 and 75,835

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Solution

The fourth proportional to 139,495.60, 192,501.66 and 75,835 is: 104,651.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,495.60 : 192,501.66 = 75,835 : x
  2. Step 2: Convert to fraction form
    139,495.60/192,501.66 = 75,835/x
  3. Step 3: Cross multiply
    139,495.60x = 192,501.66 × 75,835
  4. Step 4: Simplify right side
    139,495.60x = 14,598,363,386.10
  5. Step 5: Solve for x
    x = 14,598,363,386.10/139,495.60
  6. Step 6: Final answer
    x = 104,651.07

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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.