Home / 97,111.90-145,688.64-55,011.88

Finding the Fourth Proportional to 97,111.90, 145,688.64 and 55,011.88

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Solution

The fourth proportional to 97,111.90, 145,688.64 and 55,011.88 is: 82,529.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,111.90 : 145,688.64 = 55,011.88 : x
  2. Step 2: Convert to fraction form
    97,111.90/145,688.64 = 55,011.88/x
  3. Step 3: Cross multiply
    97,111.90x = 145,688.64 × 55,011.88
  4. Step 4: Simplify right side
    97,111.90x = 8,014,605,981.04
  5. Step 5: Solve for x
    x = 8,014,605,981.04/97,111.90
  6. Step 6: Final answer
    x = 82,529.60

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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.