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Finding the Fourth Proportional to 100,971.60, 151,457.40 and 93,098.40

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Solution

The fourth proportional to 100,971.60, 151,457.40 and 93,098.40 is: 139,647.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,971.60 : 151,457.40 = 93,098.40 : x
  2. Step 2: Convert to fraction form
    100,971.60/151,457.40 = 93,098.40/x
  3. Step 3: Cross multiply
    100,971.60x = 151,457.40 × 93,098.40
  4. Step 4: Simplify right side
    100,971.60x = 14,100,441,608.16
  5. Step 5: Solve for x
    x = 14,100,441,608.16/100,971.60
  6. Step 6: Final answer
    x = 139,647.60

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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.