Home / 142,646.10-213,848.73-89,939.40

Finding the Fourth Proportional to 142,646.10, 213,848.73 and 89,939.40

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Solution

The fourth proportional to 142,646.10, 213,848.73 and 89,939.40 is: 134,833.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,646.10 : 213,848.73 = 89,939.40 : x
  2. Step 2: Convert to fraction form
    142,646.10/213,848.73 = 89,939.40/x
  3. Step 3: Cross multiply
    142,646.10x = 213,848.73 × 89,939.40
  4. Step 4: Simplify right side
    142,646.10x = 19,233,426,466.96
  5. Step 5: Solve for x
    x = 19,233,426,466.96/142,646.10
  6. Step 6: Final answer
    x = 134,833.17

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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.