Home / 105,101.19-145,044-59,787.16

Finding the Fourth Proportional to 105,101.19, 145,044 and 59,787.16

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Solution

The fourth proportional to 105,101.19, 145,044 and 59,787.16 is: 82,508.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,101.19 : 145,044 = 59,787.16 : x
  2. Step 2: Convert to fraction form
    105,101.19/145,044 = 59,787.16/x
  3. Step 3: Cross multiply
    105,101.19x = 145,044 × 59,787.16
  4. Step 4: Simplify right side
    105,101.19x = 8,671,768,835.04
  5. Step 5: Solve for x
    x = 8,671,768,835.04/105,101.19
  6. Step 6: Final answer
    x = 82,508.76

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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.