Home / 139,970.04-193,159.26-89,698.20

Finding the Fourth Proportional to 139,970.04, 193,159.26 and 89,698.20

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Solution

The fourth proportional to 139,970.04, 193,159.26 and 89,698.20 is: 123,783.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,970.04 : 193,159.26 = 89,698.20 : x
  2. Step 2: Convert to fraction form
    139,970.04/193,159.26 = 89,698.20/x
  3. Step 3: Cross multiply
    139,970.04x = 193,159.26 × 89,698.20
  4. Step 4: Simplify right side
    139,970.04x = 17,326,037,935.33
  5. Step 5: Solve for x
    x = 17,326,037,935.33/139,970.04
  6. Step 6: Final answer
    x = 123,783.90

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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.