Home / 112,417.65-168,709.64-53,253.45

Finding the Fourth Proportional to 112,417.65, 168,709.64 and 53,253.45

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Solution

The fourth proportional to 112,417.65, 168,709.64 and 53,253.45 is: 79,919.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,417.65 : 168,709.64 = 53,253.45 : x
  2. Step 2: Convert to fraction form
    112,417.65/168,709.64 = 53,253.45/x
  3. Step 3: Cross multiply
    112,417.65x = 168,709.64 × 53,253.45
  4. Step 4: Simplify right side
    112,417.65x = 8,984,370,111.99
  5. Step 5: Solve for x
    x = 8,984,370,111.99/112,417.65
  6. Step 6: Final answer
    x = 79,919.57

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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.