Home / 139,162.08-208,345.80-130,334.16

Finding the Fourth Proportional to 139,162.08, 208,345.80 and 130,334.16

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Solution

The fourth proportional to 139,162.08, 208,345.80 and 130,334.16 is: 195,129.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,162.08 : 208,345.80 = 130,334.16 : x
  2. Step 2: Convert to fraction form
    139,162.08/208,345.80 = 130,334.16/x
  3. Step 3: Cross multiply
    139,162.08x = 208,345.80 × 130,334.16
  4. Step 4: Simplify right side
    139,162.08x = 27,154,574,832.53
  5. Step 5: Solve for x
    x = 27,154,574,832.53/139,162.08
  6. Step 6: Final answer
    x = 195,129.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.