Home / 99,095.22-136,712.47-56,630.97

Finding the Fourth Proportional to 99,095.22, 136,712.47 and 56,630.97

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Solution

The fourth proportional to 99,095.22, 136,712.47 and 56,630.97 is: 78,128.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,095.22 : 136,712.47 = 56,630.97 : x
  2. Step 2: Convert to fraction form
    99,095.22/136,712.47 = 56,630.97/x
  3. Step 3: Cross multiply
    99,095.22x = 136,712.47 × 56,630.97
  4. Step 4: Simplify right side
    99,095.22x = 7,742,159,787.20
  5. Step 5: Solve for x
    x = 7,742,159,787.20/99,095.22
  6. Step 6: Final answer
    x = 78,128.49

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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.