Home / 112,931.51-169,452.54-79,864.07

Finding the Fourth Proportional to 112,931.51, 169,452.54 and 79,864.07

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Solution

The fourth proportional to 112,931.51, 169,452.54 and 79,864.07 is: 119,835.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,931.51 : 169,452.54 = 79,864.07 : x
  2. Step 2: Convert to fraction form
    112,931.51/169,452.54 = 79,864.07/x
  3. Step 3: Cross multiply
    112,931.51x = 169,452.54 × 79,864.07
  4. Step 4: Simplify right side
    112,931.51x = 13,533,168,668.98
  5. Step 5: Solve for x
    x = 13,533,168,668.98/112,931.51
  6. Step 6: Final answer
    x = 119,835.19

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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.