Home / 98,688.34-148,011.30-31,225.72

Finding the Fourth Proportional to 98,688.34, 148,011.30 and 31,225.72

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Solution

The fourth proportional to 98,688.34, 148,011.30 and 31,225.72 is: 46,831.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,688.34 : 148,011.30 = 31,225.72 : x
  2. Step 2: Convert to fraction form
    98,688.34/148,011.30 = 31,225.72/x
  3. Step 3: Cross multiply
    98,688.34x = 148,011.30 × 31,225.72
  4. Step 4: Simplify right side
    98,688.34x = 4,621,759,410.64
  5. Step 5: Solve for x
    x = 4,621,759,410.64/98,688.34
  6. Step 6: Final answer
    x = 46,831.87

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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.