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Finding the Fourth Proportional to 97,328.80, 145,762.80 and 65,994.40

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Solution

The fourth proportional to 97,328.80, 145,762.80 and 65,994.40 is: 98,835.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,328.80 : 145,762.80 = 65,994.40 : x
  2. Step 2: Convert to fraction form
    97,328.80/145,762.80 = 65,994.40/x
  3. Step 3: Cross multiply
    97,328.80x = 145,762.80 × 65,994.40
  4. Step 4: Simplify right side
    97,328.80x = 9,619,528,528.32
  5. Step 5: Solve for x
    x = 9,619,528,528.32/97,328.80
  6. Step 6: Final answer
    x = 98,835.38

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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.