Home / 102,114.77-140,918.67-56,795.67

Finding the Fourth Proportional to 102,114.77, 140,918.67 and 56,795.67

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Solution

The fourth proportional to 102,114.77, 140,918.67 and 56,795.67 is: 78,378.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,114.77 : 140,918.67 = 56,795.67 : x
  2. Step 2: Convert to fraction form
    102,114.77/140,918.67 = 56,795.67/x
  3. Step 3: Cross multiply
    102,114.77x = 140,918.67 × 56,795.67
  4. Step 4: Simplify right side
    102,114.77x = 8,003,570,278.16
  5. Step 5: Solve for x
    x = 8,003,570,278.16/102,114.77
  6. Step 6: Final answer
    x = 78,378.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.