Home / 145,707.47-201,082.51-81,176.67

Finding the Fourth Proportional to 145,707.47, 201,082.51 and 81,176.67

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Solution

The fourth proportional to 145,707.47, 201,082.51 and 81,176.67 is: 112,027.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,707.47 : 201,082.51 = 81,176.67 : x
  2. Step 2: Convert to fraction form
    145,707.47/201,082.51 = 81,176.67/x
  3. Step 3: Cross multiply
    145,707.47x = 201,082.51 × 81,176.67
  4. Step 4: Simplify right side
    145,707.47x = 16,323,208,557.04
  5. Step 5: Solve for x
    x = 16,323,208,557.04/145,707.47
  6. Step 6: Final answer
    x = 112,027.26

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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.