Home / 105,159.28-145,114.12-59,835.92

Finding the Fourth Proportional to 105,159.28, 145,114.12 and 59,835.92

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Solution

The fourth proportional to 105,159.28, 145,114.12 and 59,835.92 is: 82,570.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,159.28 : 145,114.12 = 59,835.92 : x
  2. Step 2: Convert to fraction form
    105,159.28/145,114.12 = 59,835.92/x
  3. Step 3: Cross multiply
    105,159.28x = 145,114.12 × 59,835.92
  4. Step 4: Simplify right side
    105,159.28x = 8,683,036,875.19
  5. Step 5: Solve for x
    x = 8,683,036,875.19/105,159.28
  6. Step 6: Final answer
    x = 82,570.33

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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.