Home / 112,420.65-168,714.15-53,256.45

Finding the Fourth Proportional to 112,420.65, 168,714.15 and 53,256.45

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Solution

The fourth proportional to 112,420.65, 168,714.15 and 53,256.45 is: 79,924.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,420.65 : 168,714.15 = 53,256.45 : x
  2. Step 2: Convert to fraction form
    112,420.65/168,714.15 = 53,256.45/x
  3. Step 3: Cross multiply
    112,420.65x = 168,714.15 × 53,256.45
  4. Step 4: Simplify right side
    112,420.65x = 8,985,116,693.77
  5. Step 5: Solve for x
    x = 8,985,116,693.77/112,420.65
  6. Step 6: Final answer
    x = 79,924.08

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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.