Home / 210,516.76-290,707.14-135,196.48

Finding the Fourth Proportional to 210,516.76, 290,707.14 and 135,196.48

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Solution

The fourth proportional to 210,516.76, 290,707.14 and 135,196.48 is: 186,695.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,516.76 : 290,707.14 = 135,196.48 : x
  2. Step 2: Convert to fraction form
    210,516.76/290,707.14 = 135,196.48/x
  3. Step 3: Cross multiply
    210,516.76x = 290,707.14 × 135,196.48
  4. Step 4: Simplify right side
    210,516.76x = 39,302,582,038.87
  5. Step 5: Solve for x
    x = 39,302,582,038.87/210,516.76
  6. Step 6: Final answer
    x = 186,695.74

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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.