Home / 153,430.02-211,798.90-103,158.18

Finding the Fourth Proportional to 153,430.02, 211,798.90 and 103,158.18

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Solution

The fourth proportional to 153,430.02, 211,798.90 and 103,158.18 is: 142,402.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,430.02 : 211,798.90 = 103,158.18 : x
  2. Step 2: Convert to fraction form
    153,430.02/211,798.90 = 103,158.18/x
  3. Step 3: Cross multiply
    153,430.02x = 211,798.90 × 103,158.18
  4. Step 4: Simplify right side
    153,430.02x = 21,848,789,050.00
  5. Step 5: Solve for x
    x = 21,848,789,050.00/153,430.02
  6. Step 6: Final answer
    x = 142,402.31

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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.