Home / 105,430.48-145,492.77-57,683.14

Finding the Fourth Proportional to 105,430.48, 145,492.77 and 57,683.14

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Solution

The fourth proportional to 105,430.48, 145,492.77 and 57,683.14 is: 79,602.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,430.48 : 145,492.77 = 57,683.14 : x
  2. Step 2: Convert to fraction form
    105,430.48/145,492.77 = 57,683.14/x
  3. Step 3: Cross multiply
    105,430.48x = 145,492.77 × 57,683.14
  4. Step 4: Simplify right side
    105,430.48x = 8,392,479,820.90
  5. Step 5: Solve for x
    x = 8,392,479,820.90/105,430.48
  6. Step 6: Final answer
    x = 79,602.03

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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.