Home / 98,688.40-148,032.60-72,444.40

Finding the Fourth Proportional to 98,688.40, 148,032.60 and 72,444.40

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Solution

The fourth proportional to 98,688.40, 148,032.60 and 72,444.40 is: 108,666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,688.40 : 148,032.60 = 72,444.40 : x
  2. Step 2: Convert to fraction form
    98,688.40/148,032.60 = 72,444.40/x
  3. Step 3: Cross multiply
    98,688.40x = 148,032.60 × 72,444.40
  4. Step 4: Simplify right side
    98,688.40x = 10,724,132,887.44
  5. Step 5: Solve for x
    x = 10,724,132,887.44/98,688.40
  6. Step 6: Final answer
    x = 108,666.60

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1.5x scale

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.