Home / 112,280.48-154,941.36-61,969.76

Finding the Fourth Proportional to 112,280.48, 154,941.36 and 61,969.76

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Solution

The fourth proportional to 112,280.48, 154,941.36 and 61,969.76 is: 85,515.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,280.48 : 154,941.36 = 61,969.76 : x
  2. Step 2: Convert to fraction form
    112,280.48/154,941.36 = 61,969.76/x
  3. Step 3: Cross multiply
    112,280.48x = 154,941.36 × 61,969.76
  4. Step 4: Simplify right side
    112,280.48x = 9,601,678,893.27
  5. Step 5: Solve for x
    x = 9,601,678,893.27/112,280.48
  6. Step 6: Final answer
    x = 85,515.12

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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.