Home / 112,409.86-155,127.67-61,424.74

Finding the Fourth Proportional to 112,409.86, 155,127.67 and 61,424.74

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Solution

The fourth proportional to 112,409.86, 155,127.67 and 61,424.74 is: 84,767.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,409.86 : 155,127.67 = 61,424.74 : x
  2. Step 2: Convert to fraction form
    112,409.86/155,127.67 = 61,424.74/x
  3. Step 3: Cross multiply
    112,409.86x = 155,127.67 × 61,424.74
  4. Step 4: Simplify right side
    112,409.86x = 9,528,677,141.43
  5. Step 5: Solve for x
    x = 9,528,677,141.43/112,409.86
  6. Step 6: Final answer
    x = 84,767.27

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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.