Home / 105,187.40-145,141.62-60,466.76

Finding the Fourth Proportional to 105,187.40, 145,141.62 and 60,466.76

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Solution

The fourth proportional to 105,187.40, 145,141.62 and 60,466.76 is: 83,434.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,187.40 : 145,141.62 = 60,466.76 : x
  2. Step 2: Convert to fraction form
    105,187.40/145,141.62 = 60,466.76/x
  3. Step 3: Cross multiply
    105,187.40x = 145,141.62 × 60,466.76
  4. Step 4: Simplify right side
    105,187.40x = 8,776,243,502.55
  5. Step 5: Solve for x
    x = 8,776,243,502.55/105,187.40
  6. Step 6: Final answer
    x = 83,434.36

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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.