Home / 213,909.47-295,211.45-122,030.77

Finding the Fourth Proportional to 213,909.47, 295,211.45 and 122,030.77

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Solution

The fourth proportional to 213,909.47, 295,211.45 and 122,030.77 is: 168,411.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,909.47 : 295,211.45 = 122,030.77 : x
  2. Step 2: Convert to fraction form
    213,909.47/295,211.45 = 122,030.77/x
  3. Step 3: Cross multiply
    213,909.47x = 295,211.45 × 122,030.77
  4. Step 4: Simplify right side
    213,909.47x = 36,024,880,123.36
  5. Step 5: Solve for x
    x = 36,024,880,123.36/213,909.47
  6. Step 6: Final answer
    x = 168,411.81

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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.