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Finding the Fourth Proportional to 106,303.60, 159,455.40 and 61,980.40

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Solution

The fourth proportional to 106,303.60, 159,455.40 and 61,980.40 is: 92,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,303.60 : 159,455.40 = 61,980.40 : x
  2. Step 2: Convert to fraction form
    106,303.60/159,455.40 = 61,980.40/x
  3. Step 3: Cross multiply
    106,303.60x = 159,455.40 × 61,980.40
  4. Step 4: Simplify right side
    106,303.60x = 9,883,109,474.16
  5. Step 5: Solve for x
    x = 9,883,109,474.16/106,303.60
  6. Step 6: Final answer
    x = 92,970.60

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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.