Home / 100,904.22-139,102.37-70,595.64

Finding the Fourth Proportional to 100,904.22, 139,102.37 and 70,595.64

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Solution

The fourth proportional to 100,904.22, 139,102.37 and 70,595.64 is: 97,320.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,904.22 : 139,102.37 = 70,595.64 : x
  2. Step 2: Convert to fraction form
    100,904.22/139,102.37 = 70,595.64/x
  3. Step 3: Cross multiply
    100,904.22x = 139,102.37 × 70,595.64
  4. Step 4: Simplify right side
    100,904.22x = 9,820,020,835.67
  5. Step 5: Solve for x
    x = 9,820,020,835.67/100,904.22
  6. Step 6: Final answer
    x = 97,320.22

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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.