Home / 145,911.06-201,402.21-85,501.34

Finding the Fourth Proportional to 145,911.06, 201,402.21 and 85,501.34

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Solution

The fourth proportional to 145,911.06, 201,402.21 and 85,501.34 is: 118,018.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,911.06 : 201,402.21 = 85,501.34 : x
  2. Step 2: Convert to fraction form
    145,911.06/201,402.21 = 85,501.34/x
  3. Step 3: Cross multiply
    145,911.06x = 201,402.21 × 85,501.34
  4. Step 4: Simplify right side
    145,911.06x = 17,220,157,826.95
  5. Step 5: Solve for x
    x = 17,220,157,826.95/145,911.06
  6. Step 6: Final answer
    x = 118,018.18

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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.