Home / 145,848.60-218,427.30-89,861.40

Finding the Fourth Proportional to 145,848.60, 218,427.30 and 89,861.40

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Solution

The fourth proportional to 145,848.60, 218,427.30 and 89,861.40 is: 134,579.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,848.60 : 218,427.30 = 89,861.40 : x
  2. Step 2: Convert to fraction form
    145,848.60/218,427.30 = 89,861.40/x
  3. Step 3: Cross multiply
    145,848.60x = 218,427.30 × 89,861.40
  4. Step 4: Simplify right side
    145,848.60x = 19,628,182,976.22
  5. Step 5: Solve for x
    x = 19,628,182,976.22/145,848.60
  6. Step 6: Final answer
    x = 134,579.17

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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.