Home / 160,485.14-221,700.18-128,177.34

Finding the Fourth Proportional to 160,485.14, 221,700.18 and 128,177.34

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Solution

The fourth proportional to 160,485.14, 221,700.18 and 128,177.34 is: 177,068.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,485.14 : 221,700.18 = 128,177.34 : x
  2. Step 2: Convert to fraction form
    160,485.14/221,700.18 = 128,177.34/x
  3. Step 3: Cross multiply
    160,485.14x = 221,700.18 × 128,177.34
  4. Step 4: Simplify right side
    160,485.14x = 28,416,940,509.31
  5. Step 5: Solve for x
    x = 28,416,940,509.31/160,485.14
  6. Step 6: Final answer
    x = 177,068.98

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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.