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Finding the Fourth Proportional to 93,313.80, 139,970.70 and 88,259.40

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Solution

The fourth proportional to 93,313.80, 139,970.70 and 88,259.40 is: 132,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,313.80 : 139,970.70 = 88,259.40 : x
  2. Step 2: Convert to fraction form
    93,313.80/139,970.70 = 88,259.40/x
  3. Step 3: Cross multiply
    93,313.80x = 139,970.70 × 88,259.40
  4. Step 4: Simplify right side
    93,313.80x = 12,353,729,999.58
  5. Step 5: Solve for x
    x = 12,353,729,999.58/93,313.80
  6. Step 6: Final answer
    x = 132,389.10

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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.